/*
 * @Author: lei
 * @Description: 对树结点的定义
 * @FilePath: /树/definition.h
 */
#ifndef DEFINITION_H
#define DEFINITION_H

using namespace std;
struct TreeNode {
  int val;
  TreeNode* left = nullptr;
  TreeNode* right = nullptr;
  TreeNode(int t) : val(t) {}
  TreeNode() = default;
};

#endif  // DEFINITION_H